PHP Insert ID Error Resolution

Raw code

The code is as follows	Copy Code
$sql = "INSERT into ' message ' (' id ', ' user ', ' title ', ' content ', ' lastdate ') VALUES (', ' $_post[user] ', ' $_post[title] ', ' $ _post[content] ', ' Now () '; mysql_query ($sql);

Modified Code

The code is as follows	Copy Code
$sql = "INSERT into ' message ' (' User ', ' title ', ' content ', ' lastdate ') VALUES (' $_post[user] ', ' $_post[title] ', ' $_post[co Ntent] ', ' Now () '; mysql_query ($sql);

Remove ID, because ID is inserted automatically, so get rid of it, so OK!

If the field is Tinyint,int, ... The type of either inserts automatically, either gives the default value, does not have the ' ID ' values (') such null value, because each MySQL version is different, will have the problem and cannot find the reason.